CN111056729B

CN111056729B - Medicament for sludge filter pressing and production process

Info

Publication number: CN111056729B
Application number: CN202010096334.9A
Authority: CN
Inventors: 陈磊
Original assignee: Guangzhou Green State Environment Technology Co ltd
Current assignee: Guangzhou Green State Environment Technology Co ltd
Priority date: 2020-02-18
Filing date: 2020-02-18
Publication date: 2022-06-28
Anticipated expiration: 2040-02-18
Also published as: CN111056729A

Abstract

The invention discloses a production process of a medicament for sludge filter pressing, which comprises the following steps: a1, crushing 75-100 parts of zeolite to the particle size of 20-100 mu m for later use; b1, adding 10-15 parts of fly ash, 5-10 parts of sawdust, 20-30 parts of calcium perchlorate, 5-10 parts of polymeric aluminum ferric silicate and 30-40 parts of ferric sulfate into 80 parts of water, heating to boil, continuously stirring until the water content is reduced to 20wt%, standing and cooling for later use; c1, mixing the substances obtained in the step A1 and the step B2 to obtain a component I; a2, adding 2-3 parts of polyacrylamide, 6-10 parts of sodium hexadecylbenzene sulfonate, 1-2 parts of ethylenediamine, 5-10 parts of disodium hydrogen phosphate and 5-7 parts of agar into 15 parts of ethanol, and uniformly stirring to obtain a component II. The invention can solve the defects of the prior art and reduce the usage amount of the sludge dewatering agent.

Description

Medicament for sludge filter pressing and production process

Technical Field

The invention relates to the technical field of sludge treatment, in particular to a medicament for sludge filter pressing and a production process thereof.

Background

Sludge press filtration is a process for dehydrating sludge by means of mechanical pressurization. In order to increase the dewatering rate of the filter-pressing dewatering, it is generally necessary to add a dewatering agent to the sludge before the filter-pressing. The prior sludge dewatering agent has more general use amount, which influences the later-stage reuse of the sludge.

Disclosure of Invention

The invention aims to provide a medicament for sludge pressure filtration and a production process, which can overcome the defects of the prior art and reduce the use amount of a sludge dewatering medicament.

In order to solve the technical problems, the technical scheme adopted by the invention is as follows.

A production process of a medicament for sludge pressure filtration comprises the following steps:

the medicament for sludge filter pressing comprises a component I and a component II, the following parts are parts by weight,

the preparation of the component I is carried out,

a1, crushing 75-100 parts of zeolite to the particle size of 20-100 mu m for later use;

b1, adding 10-15 parts of fly ash, 5-10 parts of sawdust, 20-30 parts of calcium perchlorate, 5-10 parts of polymeric aluminum ferric silicate and 30-40 parts of ferric sulfate into 80 parts of water, heating to boil, continuously stirring until the water content is reduced to 20wt%, standing and cooling for later use;

C1, mixing the substances obtained in the step A1 and the step B2 to obtain a component I;

the preparation of the component II is carried out,

a2, adding 2-3 parts of polyacrylamide, 6-10 parts of sodium hexadecylbenzene sulfonate, 1-2 parts of ethylenediamine, 5-10 parts of disodium hydrogen phosphate and 5-7 parts of agar into 15 parts of ethanol, and uniformly stirring to obtain a component II;

and (3) hermetically packaging the component I and the component II respectively.

Preferably, the medicament for sludge pressure filtration comprises a component I and a component II, the following parts are parts by mass,

the preparation of the component I is carried out,

a1, crushing 80 parts of zeolite to the particle size of 20-100 mu m for later use;

b1, adding 15 parts of fly ash, 8 parts of wood chips, 25 parts of calcium perchlorate, 5 parts of polyaluminum ferric silicate and 30 parts of ferric sulfate into 80 parts of water, heating to boil, continuously stirring until the water content is reduced to 20wt%, standing and cooling for later use;

the preparation of the component II is carried out,

a2, adding 2 parts of polyacrylamide, 10 parts of sodium hexadecylbenzene sulfonate, 1 part of ethylenediamine, 8 parts of disodium hydrogen phosphate and 5 parts of agar into 15 parts of ethanol, and uniformly stirring to obtain a component II;

Preferably, step B1 further includes 5 parts of plant ash.

Preferably, step a2 further includes 3 parts of an acrylic resin.

The medicament for sludge filter pressing is produced by using the production process of the medicament for sludge filter pressing.

The beneficial effect that adopts above-mentioned technical scheme to bring lies in: when the filter pressing device is used, the I component and the II component are quickly mixed, rich water absorption cores can be formed in sludge, moisture in the sludge is quickly absorbed, and the moisture is conveniently and fully discharged in the filter pressing process. The plant ash not only has the function of water absorption, but also can adjust the pH value of the sludge more importantly, so that the acrylic resin can effectively wrap and protect the water absorption core taking the zeolite as the core, and the water absorption effect of the water absorption core is further improved.

Detailed Description

Example 1

the preparation of the component I is carried out,

the preparation of the component II is carried out,

Example 2

The present embodiment is an improvement of embodiment 1, and in step B1, 5 parts of plant ash are further included.

Example 3

This example is an improvement over example 2, and further includes 3 parts of acrylic resin in step a 2.

The application method of the medicament comprises the following steps:

firstly, half of the component I is put into the sludge and fully stirred, then the rest component I and the component II are premixed, then the mixture is put into the sludge and fully stirred, and then the mixture is kept stand for 3 hours.

After the same sludge sample was pretreated with each of the agents prepared in the above 3 examples and the SV-SSC type sludge dewatering agent purchased from Hebei Jinfeng chemical industry (addition ratio: 1: 70000), a filter-press dewatering experiment was carried out (dewatering pressure: 2.1MPa, dewatering time: 30 min) to obtain the following results:

Group of	Water content of sludge before dehydration	Water content of dewatered sludge
			SV-SSC	97%	53.4%
Example 1	97%	46.2%
			Example 2	97%	44.1%
Example 3	97%	35.5%

Therefore, the medicament provided by the invention has better dehydration efficiency, namely, the medicament provided by the invention is used in a smaller amount under the condition of reaching a certain dehydration rate.

The water content of the dewatered sludge is set to be 50%, and the dosing proportion of each group is as follows:

group of	Dosing ratio
		SV-SSC	1:65000
Example 1	1:80000
		Example 2	1:86000
Example 3	1:94000

The above description is only presented as an enabling solution for the present invention and should not be taken as a sole limitation on the solution itself.

Claims

1. The production process of the medicament for sludge pressure filtration is characterized by comprising the following steps of:

the preparation of the component I is carried out,

b1, adding 15 parts of fly ash, 8 parts of wood chips, 25 parts of calcium perchlorate, 5 parts of polyaluminum ferric silicate, 30 parts of ferric sulfate and 5 parts of plant ash into 80 parts of water, heating to boil, continuously stirring until the water content is reduced to 20wt%, standing and cooling for later use;

the preparation of the component II is carried out,

a2, adding 15 parts of ethanol into 2 parts of polyacrylamide, 10 parts of sodium hexadecylbenzene sulfonate, 1 part of ethylenediamine, 8 parts of disodium hydrogen phosphate, 3 parts of acrylic resin and 5 parts of agar, and uniformly stirring to obtain a component II;